854 THE JOURNAL OF BOTANY 
NOTES ON CORNISH PLANTS. 
By Frep. Hamimton Davey. 
Norwirustanpine the attention which Cornwall has received at 
i hands of a continuous line of botanists since the time of Ray, 
the investigations carried out last year and this by Mr. A. O. Hume, 
C.B., and myself, for our gictnget Flora of the county, have shown 
that much may be done in some comparatively unexplored districts. 
In these notes I shall ohio oat with references to our own 
ersonal work, leaving new and interesting records by our numerous 
co-workers for our ‘* Prodro omus,”” which we trust we shall be able 
to print in time for next season’s work. 
Sisymbrium pannonicum Jacq. Until this year this has only 
een recorded from the Eastern Green, Penzance, where it was 
found several years ago by the late Mr. W. A. Glasson. Quite a 
colony is now flourishing at Devoran, a little port at the head of 
one of the arms of the Fal. That it was originally introduced with 
ballast o x gran there can be no doubt; but the plant is now 
growing quite away from the ballast heaps, and appears to have 
taken a permanent hold of the 4 seis Close at hand there is a very 
fine lot of Lepidium ruderale 
Brassica Cheiranthus Vill. "We have found this- Brassica fairly 
 sescigs rad the sands at Par, and Mr. R. V. Tellam reports it 
m Pentewan, a little watering- place a few miles farther west. 
o eliiyabnas " perfolbat a Donn. First appeared at Pengreep, in the 
arish of Gwennap, during the early summer of 1898, being, as I 
year a great many plants have flowered there, and others have been 
ie ise etek on fi north coast, a ee miles distant. 
rifolium ochroleucon Huds. Has bee owing very freely at 
Falmouth Docks, where it was first noticed aby Mr oy. Lawitt " 
Hippurus vulgaris L. Until last autumn there appears ins ‘have 
a 
Marazion Marsh by a Canon Rogers. In September last Mr. Hume 
gathered a single specimen on a moor a mile to the west of Penryn, 
in the parish of M 
Eryngium campestre L. We have had our attention directed to 
two distinct ae of this rarity in the Looe district. As far as 
we are able to judge, it is genuinely native; it has certainly been 
known there for over thirty years. 
Scabiosa maritima Li, I found this plant on the cliffs at New- 
quay in 1896, since which time it has extended its boundary by 
good many feet. 
Matricaria discoidea DC. This North American and Asiatic 
plant, which appeared at Falmouth Docks less than a decade ago, 
is now the commonest of plants there, and has wandered south, 
west, “a north into the parishes of Budock, Mabe, St. t. Gluvias, 
Stithians, Perranarworthal, Gwennap, and Mylor, i in each of which 
